Generating Multiple Symbols with the 2D Aztec Barcode
Symbology
This KB article describes how to encode and parse data within multiple
2D Aztec symbols, similar to
Macro
PDF417. After the symbols are read by a scanner, the data is parsed
together automatically.
The barcodes below were created using the
IDAutomation Aztec
Forms Control, with the "NumberOfSymbols" property set to 2. The
data "IDAutomation.com, Inc." is encoded and split between them, creating
two smaller symbols:
The first symbol contains the encoded data "IDAutomation", and the
second symbol contains ".com, Inc.", along with a two character prefix
before each data string. These prefixes are a two-letter code, such
as "AB" and "BB", that show up before each part when scanned.
The first letter indicates which symbol in the series was scanned,
the second indicates the total number of symbols in the series. Therefore,
if there were three symbols in the series then the indicators would
read "AC" for the first, "BC" for the second, and "CC" for the third.
For six symbols, they would be "AF", "BF", "CF" etc.
In the example above, the first barcode will yield this data "ABIDAutomation",
the second will yield this data, "BB.com, Inc."
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